Home / 1,887-2,827.77-1,655.34

Finding the Fourth Proportional to 1,887, 2,827.77 and 1,655.34

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Solution

The fourth proportional to 1,887, 2,827.77 and 1,655.34 is: 2,480.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887 : 2,827.77 = 1,655.34 : x
  2. Step 2: Convert to fraction form
    1,887/2,827.77 = 1,655.34/x
  3. Step 3: Cross multiply
    1,887x = 2,827.77 × 1,655.34
  4. Step 4: Simplify right side
    1,887x = 4,680,920.79
  5. Step 5: Solve for x
    x = 4,680,920.79/1,887
  6. Step 6: Final answer
    x = 2,480.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.